New York State Learning Standards and Core Curriculum
NY.2RF. 2nd Grade Reading Standards: Foundational Skills
Phonics and Word Recognition
2RF3. Know and apply grade-level phonics and word analysis skills in decoding words.
2RF3d. Recognize and identify root words and common prefixes (e.g. re, reread, un, undo, hop, hopping).
NY.2L. 2nd Grade Language Standards
Vocabulary Acquisition and Use
2L4. Determine or clarify the meaning of unknown and multiple-meaning words and phrases, choosing flexibly from an array of strategies.
2L4c. Use a known root word as a clue to the meaning of an unknown word with the same root (e.g., addition, additional).